Wahweap Formation, Sedimentary rock formation in Grand Staircase-Escalante National Monument, Utah and Arizona, United States.
The Wahweap Formation contains layers of sandstone that extend across southern Utah and northern Arizona, forming a succession of cliffs and slopes.
During the Late Cretaceous period, between 82.2 and 77.3 million years ago, this area accumulated sediments that preserved numerous dinosaur and early mammal fossils.
Paleontologists and geologists from multiple research institutions conduct regular field studies to document the formation's rich collection of prehistoric life forms.
Visitors can access the formation through marked trails within Grand Staircase-Escalante National Monument, with the nearest facilities located in Page, Arizona.
The formation contains over 1,900 gastropod specimens and remains of two previously unknown species of ceratopsid dinosaurs with distinctive horn structures.
Location: Utah
Location: Arizona
GPS coordinates: 37.50000,-111.70000
Latest update: March 15, 2025 14:11
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